Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average snowfall in September
- Average snowfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
Weather in September
Temperature
As August transitions into September, the average high-temperature rests at a still moderately hot 74.1°F (23.4°C), maintaining a close resemblance to the previous month. During September, the temperature in Thor is averaged to a low of 54.5°F (12.5°C) at night.Humidity
In September, the average relative humidity is 75%.Rainfall
In September, the rain falls for 11.3 days. Throughout September, 2.52" (64mm) of precipitation is accumulated. Throughout the year, in Thor, there are 129.4 rainfall days, and 25.04" (636mm) of precipitation is accumulated.Snowfall
In Thor, snow does not fall in June through September.Daylight
The average length of the day in September in Thor, Iowa, is 12h and 29min.On the first day of the month, sunrise is at 6:41 am and sunset at 7:50 pm. On the last day of September, in Thor, sunrise is at 7:13 am and sunset at 6:58 pm CDT.
Sunshine
The average sunshine in September is 9.1h.UV index
In September, the average daily maximum UV index is 4. A UV Index value of 3 to 5 symbolizes a moderate health risk from unprotected exposure to Sun's UV rays for ordinary individuals.Note: In September, the maximum UV index of 4 suggests this advice:
Prioritize safety - Suggestions to prevent sun damage are offered. Midday Sun has the strongest UV rays, making it crucial to limit exposure and find shade. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key.
Frequently asked questions
What are September temperatures in Thor?
What is the average humidity in September in Thor?
How many days does it rain in September in Thor?
When it does not snow in Thor?
Does it snow in Thor in September?
How many hours of daylight does Thor have in September?
When is the sunrise / sunset in September in Thor?
How long on average sun shines in September in Thor?
How high is the UV index in September in Thor?
Average temperature in September
Thor, IA
- Average high temperature in September: 74.1°F
The warmest month (with the highest average high temperature) is July (80.6°F).
The month with the lowest average high temperature is January (24.3°F).
- Average low temperature in September: 54.5°F
The month with the highest average low temperature is July (63.7°F).
The coldest month (with the lowest average low temperature) is January (11.5°F).
Average pressure in September
Thor, IA
- Average pressure in September: 30.01"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).
Average wind speed in September
Thor, IA
- Average wind speed in September: 8.5mph
The windiest month (with the highest average wind speed) is April (11mph).
The calmest months (with the lowest average wind speed) are July and August (7.3mph).
Average humidity in September
Thor, IA
- Average humidity in September: 75%
The month with the highest relative humidity is January (87%).
The month with the lowest relative humidity is October (69%).
Average rainfall in September
Thor, IA
- Average rainfall in September: 2.52"
The wettest month (with the highest rainfall) is June (3.7").
The driest month (with the least rainfall) is January (0.94").
Average rainfall days in September
Thor, IA
- Average rainfall days in September: 11.3 days
The month with the highest number of rainy days is June (17.4 days).
The month with the least rainy days is February (3.3 days).
Average snowfall in September
Thor, IA
- Average snowfall in September: 0"
The month with the highest snowfall is February (4.76").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Thor, IA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (11.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Thor, IA
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).
- Average sunshine in September: 9h and 1min
The month with the most sunshine is July (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 48min).
Average sunshine days in September
Thor, IA
- Average sunshine days in September: 16.2 days
The month with the most sunshine days is November (18.1 days).
The month with the least sunshine days is June (10.4 days).
Average UV index in September
Thor, IA
- Average UV index in September: 4
The months with the highest UV index are June and July (UV index 6).
The month with the lowest UV index is January (UV index 1).
Average cloud cover in September
Thor, IA
- Average cloud cover in September: 31
The month with the most cloud cover is January (Cloud cover 59).
The month with the least cloud cover is September (Cloud cover 31).
Average visibility in September
Thor, IA
- Average visibility in September: 6mi
The months with the highest visibility are February, March, April, May, June, August, September, October, November and December (6mi).
The months with the lowest visibility are January and July (5mi).
Thor, Iowa, USA
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